E 350 Van V8-7.3L DSL (1988)
1.
On the Electronic Instrument Cluster, hold in all three buttons (SELECT, CHECKOUT and RESET) at the same time.
2.
Key On Engine Off Self-Test
^
While holding in all three buttons, place ignition switch in the ON position. Release buttons.
-
Key On Engine Running Self-Test
^
While holding in all three buttons, start engine. Release buttons.
3.
Press the checkout button three times.
4.
To initiate Self-Test, jumper STI to SIG RTN at the Self-Test connectors, or use a STAR tester and latch the center button in the down position. A
base readout of [2] [5] [5] [4] indicates that Self-Test has been entered successfully.
5.
Service code output will be displayed in the left side boxes following the base display.
6.
To exit Self-Test, turn ignition switch to OFF.
